CPC Subgroup
C09C 1/3661 Full Title
Treatment of specific inorganic materials other than fibrous fillers (tenebrescent materials C09K9/00; luminescent materials C09K11/00); Preparation of carbon black > Compounds of titanium
C09C 1/3661 Treatment of specific inorganic materials other than fibrous fillers (tenebrescent materials C09K9/00; luminescent materials C09K11/00); Preparation of carbon black > Compounds of titanium